问题
选择题
It is good news to us that we are invited to such a great concert, _____?
[ ]
A. is it
B. isn't it
C. are we
D. aren't we
答案
答案：B
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It is good news to us that we are invited to such a great concert, _____?
[ ]
A. is it
B. isn't it
C. are we
D. aren't we
答案：B